ID A0A1B7UHS2_9GAMM Unreviewed; 341 AA.
AC A0A1B7UHS2;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=L-threonine 3-dehydrogenase {ECO:0000256|HAMAP-Rule:MF_00627};
DE Short=TDH {ECO:0000256|HAMAP-Rule:MF_00627};
DE EC=1.1.1.103 {ECO:0000256|HAMAP-Rule:MF_00627};
GN Name=tdh {ECO:0000256|HAMAP-Rule:MF_00627};
GN ORFNames=A5320_15500 {ECO:0000313|EMBL:OBP14062.1};
OS Rheinheimera sp. SA_1.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC Rheinheimera.
OX NCBI_TaxID=1827365 {ECO:0000313|EMBL:OBP14062.1, ECO:0000313|Proteomes:UP000092258};
RN [1] {ECO:0000313|EMBL:OBP14062.1, ECO:0000313|Proteomes:UP000092258}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SA_1 {ECO:0000313|EMBL:OBP14062.1,
RC ECO:0000313|Proteomes:UP000092258};
RA Lavstsen T., Jespersen J.S.;
RL Submitted (MAY-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the NAD(+)-dependent oxidation of L-threonine to 2-
CC amino-3-ketobutyrate. {ECO:0000256|HAMAP-Rule:MF_00627}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-threonine + NAD(+) = (2S)-2-amino-3-oxobutanoate + H(+) +
CC NADH; Xref=Rhea:RHEA:13161, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57926, ChEBI:CHEBI:57945, ChEBI:CHEBI:78948;
CC EC=1.1.1.103; Evidence={ECO:0000256|HAMAP-Rule:MF_00627};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00627};
CC Note=Binds 2 Zn(2+) ions per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00627};
CC -!- PATHWAY: Amino-acid degradation; L-threonine degradation via oxydo-
CC reductase pathway; glycine from L-threonine: step 1/2.
CC {ECO:0000256|HAMAP-Rule:MF_00627}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_00627}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00627}.
CC -!- SIMILARITY: Belongs to the zinc-containing alcohol dehydrogenase
CC family. {ECO:0000256|HAMAP-Rule:MF_00627}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OBP14062.1}.
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DR EMBL; LXWK01000017; OBP14062.1; -; Genomic_DNA.
DR RefSeq; WP_068067548.1; NZ_LXWK01000017.1.
DR AlphaFoldDB; A0A1B7UHS2; -.
DR STRING; 1827365.A5320_15500; -.
DR OrthoDB; 9773078at2; -.
DR UniPathway; UPA00046; UER00505.
DR Proteomes; UP000092258; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008743; F:L-threonine 3-dehydrogenase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019518; P:L-threonine catabolic process to glycine; IEA:UniProtKB-UniPathway.
DR Gene3D; 3.90.180.10; Medium-chain alcohol dehydrogenases, catalytic domain; 1.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR HAMAP; MF_00627; Thr_dehydrog; 1.
DR InterPro; IPR013149; ADH-like_C.
DR InterPro; IPR013154; ADH-like_N.
DR InterPro; IPR002328; ADH_Zn_CS.
DR InterPro; IPR011032; GroES-like_sf.
DR InterPro; IPR004627; L-Threonine_3-DHase.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR020843; PKS_ER.
DR NCBIfam; TIGR00692; tdh; 1.
DR PANTHER; PTHR43401; L-THREONINE 3-DEHYDROGENASE; 1.
DR PANTHER; PTHR43401:SF2; L-THREONINE 3-DEHYDROGENASE; 1.
DR Pfam; PF08240; ADH_N; 1.
DR Pfam; PF00107; ADH_zinc_N; 1.
DR SMART; SM00829; PKS_ER; 1.
DR SUPFAM; SSF50129; GroES-like; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR PROSITE; PS00059; ADH_ZINC; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00627};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00627};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_00627};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_00627}; Reference proteome {ECO:0000313|Proteomes:UP000092258};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_00627}.
FT DOMAIN 12..338
FT /note="Enoyl reductase (ER)"
FT /evidence="ECO:0000259|SMART:SM00829"
FT ACT_SITE 40
FT /note="Charge relay system"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT ACT_SITE 43
FT /note="Charge relay system"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 38
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 63
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 64
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 93
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 96
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 99
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 107
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 175
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 195
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 200
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 262..264
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT BINDING 286..287
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
FT SITE 148
FT /note="Important for catalytic activity for the proton
FT relay mechanism but does not participate directly in the
FT coordination of zinc atom"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00627"
SQ SEQUENCE 341 AA; 37002 MW; 88CA227E9CBABDA2 CRC64;
MKALAKLKAE PGIWQTEVPM PEVGPNDVLI KIRKTAICGT DVHIFKWDEW AQNTIPHGMV
VGHEYVGEVV GMGSEVRGFV LGDRVSGEGH LVCGHCRNCR AGRVHLCRNT IGVGVNRQGS
FAEYLVIPAF NVFKIPDNIP DSIAAIFDPF GNAVHTALSF DLVGEDVLIS GAGPIGIMAA
AVARHVGARH VVITDVNPFR LELAKKMGAT RAVDVSKEDL KTVMAELGMT EGFDVGLEMS
GVPSAFRLML DTMNHGGKIA MLGIPPSDMA VDWNKVIFKG LVIKGIYGRE MFETWYKMAS
LIQSGLDLTP IITHEMPMAD FQQGFEIMCS GQSGKVILNW A
//
